bing tracking image
  1. Accessories and Parts
  2. CURT
  3. Fifth Wheel Installation Kit
  4. Adapters
  5. Rail Adapter
  6. Custom
Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package

Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package

Item # C16023
Our Price: $456.95
You Save: $199.00
Accessories and Parts

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Shipping Weight: 75 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos


Need help with installation?
Locate installers near me
This adapter is specially designed to attach to the receivers in your Chevy/GMC's factory, underbed 5th-wheel towing prep package. The base then provides the attachment point for your Curt 5th-wheel slider or roller. 1-800-940-8924 to order CURT accessories and parts part number C16023 or order online at Free expert support on all CURT products. Great prices and Fastest Shipping for Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (47)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Used (1)

CURT Accessories and Parts - C16023

  • Fifth Wheel Installation Kit
  • Adapters
  • Rail Adapter
  • Custom
  • CURT

This adapter is specially designed to attach to the receivers in your Chevy/GMC's factory, underbed 5th-wheel towing prep package. The base then provides the attachment point for your Curt 5th-wheel slider or roller.


  • Custom base is specially designed to attach to the receivers in your Chevy/GMC factory-installed, underbed 5th-wheel towing prep package
  • Base works with Curt hitches with sliders (16516, C16521, C16536, C16541, or C16546 - sold separately)
    • Adapter provides an additional 1-3/8" of height compared to industry standard rails
  • Quarter-turn anchoring system for quick installation and removal
  • Adjustable anchors help to eliminate chucking between legs and underbed platform
  • Durable carbide black powder coat finish


  • Application: Chevy/GMC trucks with factory-installed, underbed towing prep package
  • Capacity: 20,000 lbs
  • 10-Year warranty

16023 Curt OEM Fifth Wheel Roller Adapter for Chevrolet and General Motors Trucks with Factory Towing Prep Package

Installation Details C16023 Installation instructions

This Product Fits The Following Vehicles

Video of Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Curt Fifth Wheel Installation Kit C16023 Review

Today we're going to take a look at the Curt GM OEM puck system fifth wheel roller adaptor rails. This is a custom fit part. It is designed to fit the 2016 and newer Chevrolet Silverado, and GMC Sierra 2500 and 3500 trucks that have the six and a half foot bed, and the factory rail kit installed. Now, on a custom fit part, I always like to recommend for you to go to our website, use our fit guide, put in your year and model vehicle, and it will show you if this will work on your vehicle. Now, this is a custom base, specifically designed to attach to the receivers in your Chevy or GMC factory installed under bed towing prep package. This base will work with the Curt hitches that have sliders, part number C16521, C16516, C16541, and C16536. All those part numbers we do sell separately on our website.

Now, the adaptor, when you do install this into the puck system, it does add about a 1 3/8 inch height compared to your industry standard rails. It does use the quarter turn anchoring system for a nice quick installation and removal. All you have to do is pop this pin and clip, that's tethered to the rail, open this a quarter of a turn, and you'll notice the tabs turn. You'll do that on all four corners, and that will allow you to drop this base right into the puck system in the truck. Once it drops in, just turn it a quarter of a turn to lock it into place. Take your pin and clip, and then just install that back in there to lock that into place, keep this from opening. Now, if you notice, right here, they do have adjustable anchors to help to eliminate any chucking between any legs in the under bed platform.

You can just tighten or loosen this nut right here, to adjust the anchors. It does have a nice durable carbide black powder coat finish on it, to help resist corrosion. Comes with the four hitch pins and clips to secure your slider hitch to the adaptor. Comes with a nice set of detailed instructions that describe how to put it all together. Again, the specs on this, it's for a 2016 and newer Chevy or GMC truck with the factory installed under bed towing prep package. It does have a weight capacity of 20,000 pounds.

Basically, once you open these quarter turned system right here, drop it into your puck system, close them up, lock them into place, and this is installed in your truck bed. Then you'll notice these slots right here, this is where your Curt slider hitch will drop right in, and then using the included pins and clips attach it to the adaptor. Simple as that. That should do it for the review on the Curt GM OEM puck system fifth wheel roller adaptor rails.

Customer Satisfaction Score:

Customer Reviews

Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package - C16023

Average Customer Rating:  4.8 out of 5 stars   (47 Customer Reviews)

This adapter is specially designed to attach to the receivers in your Chevy/GMC's factory, underbed 5th-wheel towing prep package. The base then provides the attachment point for your Curt 5th-wheel slider or roller.


Very heavy duty hitch. Initially had some concerns so ordered the 20,000 lbs. instead of the 16000. Very good service from the etrailer representatives. Had some concerns on how long the delivery was going to take, however they were able to get it to me in a very short time. Thank you to the individuals who helped with my order. Danny


Mostly awesome, just a few nudges and aligning and it was good to go. Took less than 90 minutes to open the box to putting the 5th wheel on the adapter. I also had to over tighten on of the mounting castle nuts to be able to get the cotter pin to go in.

Chris F.


Very nice


I didn't want to buy a new hitch, this adapter product worked well for the puck system in my 2019 Silverado.
I had to adjust the hitch so that the fifth wheel trailer was more level when hooked up.


Installed Curt A20 hitch w/slider rails in 2016 Chevrolet Z71 2500


I recently purchased a fifth wheel hitch for my new truck but wasn't sure I ordered the correct one after hitting the "enter" key! I called etrailer the following morning and found out I had, in fact, ordered the wrong hitch. The young man I spoke with was incredibly helpful - he canceled my initial order, explained what I really needed and why and then placed the order. I went on line the next day and found that the order had somehow been cancelled. I then spoke with LEAH G. She is the bomb. She corrected everything and did her best to expedite shipping including personally making certain that MY shipment was on the last truck of the day. What more can I say. and Leah G are unbelievably awesome from beginning to end! Thank you for a great experience Conrad

Conrad C.


Everything is still working great!


Excellent service and professional advice by Matthew K. Prompt delivery with thorough instructions. Good folks to deal with.



Consistently wonderful. The adapter rails are a custom fit.


I ordered my Curt hitch/adapter rails from etrailer and received a great price and prompt delivery. Everything arrived in good shape and has worked to perfection. Thank you etrailer.



After a two years my hitch has worked to perfection. Great product.

2019 Chevrolet Silverado 1500

This adapter allowed me to transfer my Curt E16 Roller Hitch from my 2013 GMC 1500 rail-mount to a 2019 Chev 3500HD with OE puck system. It raised the hitch height slightly but was easily readjusted on the E16 hitch body. I also adjusted the pinbox on my 10,000 lb trailer to compensate for the higher overall height of the 3500HD. This is a very well-made product that is working well for me.

Chevrolet Silverado

The C16023 worked perfectly with my new Chevrolet silverado LTZ 2500 HD under the bed mounted fith wheel attachment. The only thing I recommend is to read the instruction before installation. It looked so simple to install I went ahead without reading the instruction and had to use a hammer to close the last locking handle. As it turns out there is a simple Castle nut and cotter pin adjustment to make. Luckily I did no damage and all went well during the installation. I would highly recommend this product.
Also was vary helpful over the phone helping me figure out what I needed for my truck.. They also emailed when package was shipped and when it was delivered. They have the best prices as well. A big thanks to there customer service team for all of there help.


First of all, the purchase procedure was painless and the product performed as listed. I purchased this fifth wheel hitch base for a 2018 GMC 2500HD with under the bed hidden puck fifth wheel configuration. After a few minor adjustments the base fit the truck and the 20K lb. fifth wheel hitch very well and performed equally as well. I would recommend this purchase.

2019 Chevrolet Silverado

Works as described and fit well in my 2016 Silverado 3500 after adjusting the castle nuts. Unfortunately, the extra height (over standard rails) is preventing me from getting the RV level. With the hitch bolts in the lowest holes, the hitch sits just over 19 inches. Even with the pin box at maximum height, the front of the RV rides high. Disappointed.

2016 Chevrolet Silverado 2500

This adapter for towing prep package on Chevrolet trucks was simple to assemble and install and I would recommend to anyone. For me, I did not mate a Curt hitch on the mount and consequently the design of the mount prevents my hitch's sliding feature from working (the slide can not be unlocked). The angle steel which is used to hold the two mounting point halves blocks one of the lock pins. I hardly ever used my slide so I am not concerned.


Can not believe the condition of all items as they were received from shipping carrier. Boxes torn apart, bolts and nuts all scattered. Even 5th wheel hitch had rubber on handle cut. Found nuts and bolts on ground next to where the shipping carrier had unloaded items. Luckily found all nuts and bolts after searching area where it was off loaded from shipping truck. Even the cross brace for the hitch roller was bent.

After reading other reviews I kind of expected this however. I can't believe you would ship something like a hitch protecting in the cheap boxes used! You need to improve the packaging!

Other than that it did arrive quickly.


Very good product! Super easy to install. Took me less than 30 minutes to have my 5th wheel hitch set up and ready to pull. Only weighs 80lbs and is easy to take in and out of the bed of the truck. Shipping from etrailer was fast. This is my second purchase from etrailer. Great experience. Company very heart full.


It works like said with no problems . I installed on a 2019 Denali 2500 HD with a work box and I have no issues with pulling a 36 ft 5th wheel .


Very easy to assemble. The instruction should say not the tighten the bolts on the crossmember until the base of the hitch in placed into the slots that attach the lower hitch to the rail assembly. I tighten all the bolts before I attempted to attached the lower hitch to the rails and the rail slots would not alleign with the base. Once I loosened the nuts the base fit perfectly then torqued all the nuts.


5 stars

2017 GMC Sierra 2500

As always etrailer was a pleasure to work with. The box was damaged during shipping and a bag of screw fell out. One call to Etrailer and the problem was solved. Took about 30 minutes to install. (Half of that was finding my torque wrench).


Vanessa N confirmed that this was the correct puc base for our fifth wheel hitch. The product arrived promptly. It was easy to assemble after viewing the handy video and everything fits perfect. It took only about 20 minutes to assemble. We always shop online at etrailer for our product needs as they provide the best customer service and are very knowledgeable.


I bought these rails for my husbands truck as a present. I loved the fact that etrailer not only was able to show an exact fit but the photos of the rails INSTALLED on another trucked helped a TON! Also, their shipping was extremely fast! I choose to expedite the shipping just in case it wasn't here in time and it was here within 2 days... and they had a personal touch with their shipping updates with photos of the staff that was handling the item. :) I will use them again, hands down!

2017 GMC Sierra 2500

Went together great fit excellent in the puck holes slider works great looks nice without having the rails to deal with fits nicely under the cover when not in use thanks

2017 GMC Sierra 2500

Product is just as described. Extremely well priced and amazingly fast shipment. Good communication and tracking. I will definitely purchase from again.

2017 GMC Sierra 3500

Purchase process was easy, came in a few days and fit the truck as promised with minimal effort. My Reese hitch fits perfectly in the adaptor.


Easy installation! Highly recommended for anyone with a puck system

2018 GMC Sierra 2500

It arrived quickly. Fit perfectly and accepted my Reese hitch without issue. Saved money too!

Show More Reviews

See what our Experts say about this CURT Accessories and Parts

Do you have a question about this Accessories and Part?

Used Items Available
Used Picture for Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package
Used Picture for Adapter Rails for Curt 5th Wheel Hitch w/ Slider - Chevy/GMC Towing Prep Package

Condition: Missing Parts

Notes: Item is missing the hardware. Otherwise new and unused.

Our Price: $60.26
Add to Cart
Secure Checkout

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Chelsea B
Written by:
Chelsea B
Employee Wilson B
Updated by:
Wilson B
Employee Amanda M
Updated by:
Amanda M
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.